Asseeement of the effectivenes of the use of new disinfectants of fungicidal action to protect soybean from the main fungal pathogens

The article presents the results of testing in the Primorsky Krai of fungicidal disinfectants Maxim XL 035 FS and Delit Pro in consumption rates of 1.0 l/t in the processing of soybean seeds of the Toma variety before sowing in the semi-dry way. The studies were carried out according to generally accepted methods in a plot experiment on a trial field with meadow-brown podzolizedsoil (mechanical composition-average clay, humus content 3.8%, pH - 5.3). As a result of research, a high fungicidal activity of experimental drugs against pathogens affecting culture was established. Studies have shown that the use of Maxima XL 035 FS and Delit Pro contributes to reducing the development of root rot of complex etiology by 10.6-11.6%. The protective effect of the presowing treatment of soybean seeds with disinfectants is also manifested in the reduction of the incidence of leaf-stem diseases. The greatest efficacy against the pathogen Peronospora manshurica Naum., Septoria glycines Hemmi and Cercospora sojina Hara is marked on the variant with the pre-sowing treatment of soybean seeds Maxim XL 035 FS and was 31.6; 21.2 and 52.9%, respectively.. Protravitel stimulate growth processes of culture. In the second half of the growing season, soybean plants significantly exceeded the control plants by 7.6-8.9 cm. The use of drugs contributes to the active growth of plants and increase the values of the main elements of the structure of the crop, which ultimately led to an increase in yield. The highest yield increase (0.26 t/ha) was obtained using the Delit Pro treater. In the treated variants, the weight of 1000 seeds was significantly more by 14.9-23.0 g than in the control.

соя, грибные болезни, протравители, эффективность, урожайность, Приморский край, soybean, mushroom diseases, disinfectants, efficiency, yield, Primorsky Krai